Characterization of transient signal induced in IR detector array by Jupiter high-energy electrons and implications for JUICE/MAJIS operability

Guiot, Pierre; Vincendon, M.; Carter, John; Langevin, Y.; Carapelle, Alain

doi:10.1016/j.pss.2019.104782

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…For the MAJIS VIS-NIR detectors, the effect of high-energy electrons impacting their sensitive area was investigated by the Liege Space Center. 41…”

Section: Other Measurementsmentioning

confidence: 99%

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Facility for the radiometric characterization of space-based visible-near infrared detectors

Cisneros-González,

Bolsée,

Pereira

et al. 2023

J. Astron. Telesc. Instrum. Syst.

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When developing new astronomical instruments, there is a need to perform the characterization of their individual components, especially the detectors, to ensure that their performances comply with the scientific objectives of the instrument. A visiblenear infrared (VIS-NIR) facility was developed for the absolute and relative radiometric characterization of space-based detectors at the Royal Belgian Institute for Space Aeronomy (BIRA-IASB). The facility operates from 0.4 to 2.65 μm in an ISO-5 environment. It offers a tunable monochromatic flux with a high level of straylight rejection (10 −8 ) and 2% uniformity, over a four-decade range of intensity with adjustable bandwidth. Latency measurements are also possible. Thermalization is offered within a precision of 7 mK between 50 K and 382 K. The ultimate vacuum level of the detector chamber is below 10 −6 mbar. A robust security system avoids both reaching temperatures outside the operational range of the detector and its electronics, and contamination due to vacuum loss. The facility was already used to characterize the VIS-NIR detectors of the Moons And Jupiter Imaging Spectrometer (MAJIS), one of the instruments on board the Jupiter ICy Moons Explorer (JUICE). The versatility provided by the VIS-NIR facility allows its use for the characterization of other astronomical detectors.

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“…For the MAJIS VIS-NIR detectors, the effect of high-energy electrons impacting their sensitive area was investigated by the Liege Space Center. 41…”

Section: Other Measurementsmentioning

confidence: 99%

“…Moreover, only other than flight or spare detectors would be exposed to these tests. For the MAJIS VIS-NIR detectors, the effect of high-energy electrons impacting their sensitive area was investigated by the Liege Space Center 41 …”

Section: Comparison Against Other Facilitiesmentioning

confidence: 99%

Facility for the radiometric characterization of space-based visible-near infrared detectors

Cisneros-González,

Bolsée,

Pereira

et al. 2023

J. Astron. Telesc. Instrum. Syst.

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Moons and Jupiter Imaging Spectrometer (MAJIS) on Jupiter Icy Moons Explorer (JUICE)

Poulet,

Piccioni,

Langevin

et al. 2024

Space Sci Rev

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The MAJIS (Moons And Jupiter Imaging Spectrometer) instrument on board the ESA JUICE (JUpiter ICy moon Explorer) mission is an imaging spectrometer operating in the visible and near-infrared spectral range from 0.50 to 5.55 μm in two spectral channels with a boundary at 2.3 μm and spectral samplings for the VISNIR and IR channels better than 4 nm/band and 7 nm/band, respectively. The IFOV is 150 μrad over a total of 400 pixels. As already amply demonstrated by the past and present operative planetary space missions, an imaging spectrometer of this type can span a wide range of scientific objectives, from the surface through the atmosphere and exosphere. MAJIS is then perfectly suitable for a comprehensive study of the icy satellites, with particular emphasis on Ganymede, the Jupiter atmosphere, including its aurorae and the spectral characterization of the whole Jupiter system, including the ring system, small inner moons, and targets of opportunity whenever feasible. The accurate measurement of radiance from the different targets, in some case particularly faint due to strong absorption features, requires a very sensitive cryogenic instrument operating in a severe radiation environment. In this respect MAJIS is the state-of-the-art imaging spectrometer devoted to these objectives in the outer Solar System and its passive cooling system without cryocoolers makes it potentially robust for a long-life mission as JUICE is. In this paper we report the scientific objectives, discuss the design of the instrument including its complex on-board pipeline, highlight the achieved performance, and address the observation plan with the relevant instrument modes.

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Characterization of transient signal induced in IR detector array by Jupiter high-energy electrons and implications for JUICE/MAJIS operability

Cited by 2 publications

References 27 publications

Facility for the radiometric characterization of space-based visible-near infrared detectors

Facility for the radiometric characterization of space-based visible-near infrared detectors

Moons and Jupiter Imaging Spectrometer (MAJIS) on Jupiter Icy Moons Explorer (JUICE)

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